# APEX Runner: Cross Asset Contagion Institutional Signal

> APEX Runner: Cross Asset Contagion Institutional Signal is a paid API for AI agents from apexrunner.ai, paid per call via x402, $28/call, status unknown (last checked 2026-09-14).

Returns institutional-grade cross-asset contagion signals with confidence scores, predicted move percentages, lag timings, and live trading execution status across major crypto venues.

## Facts

- Endpoint: GET https://apexrunner.ai/signals/cross-asset-contagion-institutional
- Price: $28/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apex-runner-cross-asset-contagion-institutional-signal-20f01be4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SxodB8USp5trE-UjvOw0s

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability apex-runner-cross-asset-contagion-institutional-signal-20f01be4
```

Example prompt: Pull the APEX Runner cross-asset contagion institutional signal right now — I want to see which assets are at risk of contagion spread, the predicted move percentages with confidence scores, and whether live capital is actually backing this signal on Kraken, Coinbase, and Hyperliquid.

## When to prefer this

Choose this endpoint when you need institutional-grade cross-asset contagion detection with live trading verification — specifically when you need to know not just correlation signals but whether real capital is deployed backing those signals, with grid execution status across multiple venues. Prefer this over the non-institutional Cross Asset Contagion endpoint when you require tier classification, position sizing guidance, data provenance flags, and APEX track record context.

## Known failure modes

- Payment not included or insufficient USDC — HTTP 402 returned
- Signal generation failure if live market data is unavailable
- Empty or null predictions object if no contagion detected in current regime
- Stale grid_status if exchange connectivity is intermittent
- Rate limiting if called too frequently without payment

## How this service works

APEX Runner: Cross Asset Contagion Institutional Signal

## Output

Returns a structured payload containing: contagion predictions per asset with confidence scores, predicted move percentages, lag minutes, and historical correlations; institutional metadata including tier, signal strength, grid status across Kraken/Coinbase/Hyperliquid (open orders, cycle timestamps), position sizing recommendations with max allocation percentage, signal provenance flags (backtested, live since, real capital deployed), APEX track record, and a verifiable signal hash with version and instance identifiers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "institutional": {
   "signal_strength": "MODERATE"
  },
  "contagion_severity": "MODERATE"
 },
 "institutional": "object — confidence_interval, position_sizing, historical_accuracy",
 "contagion_severity": "string"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/apex-runner-cross-asset-contagion-institutional-signal-20f01be4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apexrunner.ai](https://www.zero.xyz/host/apexrunner.ai/llms.txt)